 
   Available optional arguments:
 
-  :extends, :prefix - same as for `gen-class`.
+  :extends, :implements, :prefix - same as for `gen-class`.
 
   :features - window features to be requested for the activity.
   Relevant only if :create is used.

        ~@(when state
            '(:init "init" :state "state"))
        :extends ~(or extends Activity)
        :exposes-methods {~'onCreate ~'superOnCreate
                          ~'onStart ~'superOnStart
                          ~'onRestart ~'superOnRestart


  :on-start, :on-restart, :on-resume, :on-pause, :on-stop, :on-destroy
  - same as :on-create but require a one-argument function."
  [name & {:keys [extends implements prefix on-create on-create-options-menu
                  on-options-item-selected on-activity-result
                  on-new-intent def state key features]
           :as options}]
